Please help me with Differential equation assignment . I attached the file. Thank you!

Show that the system of differential equations for the charge on the capacitor alt) and the current is't) in the electrical network shown in Fip. 7.69 is K, -dE + ( 9 + Rycz = Elt) L di3 12 + + R zig - 2 9 = 0 b) Find the chairpe on the capacitor when L= Th, Ry = 102, R2 = 152, C=17, tz1, is10 ) = 0 and glo)-0